Baby bathtub



FIG. 1 shows a top perspective view of the design;

FIG. 2 shows a first side perspective view of the design;

FIG. 3 shows a second side perspective view of the design;

FIG. 4 shows a front view of the design;

FIG. 5 shows a top plan view of the design;

FIG. 6 shows a side bottom view of the design; and,

FIG. 7 shows a bottom plan view of the design.

The broken lines shown on the drawings depict environment only and form no part of the claimed design. 

CLAIM The ornamental design for a baby bathtub, as shown and described. 